 <template>
   <div class="box">
     <h1 class="title">{{title}}</h1>
     <div>vue渲染的</div>
     <HelloWorldVue></HelloWorldVue>
   </div>
 </template>
 <script>
   import HelloWorldVue from "./HelloWorld"
   export default {
     data () {
       return {
         title: 'hahah'
       }
     },
     components: {
       HelloWorldVue
     }
   }
 </script>
 <style scoped>
   .box {}
   .title {
     color: red;
   }
 </style>